3 Tips for a healthy foundation drainage grade

  1. Resist the urge to make berms in front of your foundation. Adding raised beds in front of the foundation walls slow the flow of rainwater away from the foundation. Although they look great in some cases, they trap water next to the foundation area.
  2. Do not add deep layers of barkdust next to the foundation. This will soak up water from hard rains, and produce a spongy surface that causes leaking into your basement, crawlspace, or window wells. It many times forms a negative grade that slopes to the foundation as well.
  3. Do not plant trees and other vegetation such as bamboo next to the foundation, as they will grow and create roots that act as pathways for water to invade below grade areas. They look great, but in time will hurt your drainage, if not damage your foundation. This is especially true of most bamboo varieties. Mature trees also overhang gutters and add to the debris that accumulates in them. This debris gets washed into your rain drain discharge pipes and soon a substantial financial outlay is in the future for the construction of new french drain systems to vent rain water away from your home, and keep downspouts running.

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